17, 34, 53, 76, ?, 136

17, 34, 53, 76, ?, 136

Q. 17, 34, 53, 76, ?, 136

a) 105

b) 112

c) 123

d) 98

e) 87

Sol:

17 + 17 = 34

34 + 19 = 53

53 + 23 = 76

76 + 29 = 105

105 + 31 = 136

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